Google Analytics is a free tool that shows what people do on your website. It tells you where visitors come from, what pages they read, and when they leave. This helps you see what marketing brings real traffic. For example, you can check if social media or ads send more visitors. You can also see pages people leave quickly and improve them. Looking at these numbers weekly helps you fix problems early. Small changes based on data often bring better results than guessing. How should beginners start using Google Analytics?